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Sagot :
Answer:
a = 45 degrees
Explanation:
A flat line is 180 degrees, the given angle is 90 degrees
90 = half 180
so 2a = 90
90 / 2 = 45
a = 45 degrees
Answer: 45°
Explanation:
A straight line is equal to 180°. Since the angle is made up of 90° and two a angles, we will subtract 90 and divide by two.
180° - 90° = 90°
90° / 2 = 45°
a = 45°
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